Just-Lens PU
Series
Next-Generation
Lens Material.
Superior Anti-Yellowing, Exceptional Toughness, and an
Extended Lifespan for the most demanding optical
requirements.

PU Material R&D Difference
Elevating optical clarity through molecular engineering.

Anti-Yellowing Mastery
Engineered at the molecular level, our PU series resists
UV-induced degradation, so the lens keeps its
crystalline transparency through long,
everyday wear.
High Toughness Core
Tested under extreme tensile and impact protocols, the
PU matrix absorbs kinetic energy without shattering,
ideal for rimless and semi-rimless frames.
Extended Lifespan
The enhanced surface density not only prevents
discoloration but also provides a superior substrate for
our proprietary lab-grade coatings, doubling effective
wear time.
Dual Indices Architecture
Available in precision-tuned 1.61 and 1.67 refractive
indices, allowing perfect alignment between aesthetic
thinness and optical purity for any prescription.
Performance Comparison
Precision engineering tailored to prescription intensity.
Exceptional balance of durability and clarity.
Standard high-index profile.
Low to moderate prescriptions (Slight to -4.00).
Everyday wear.
PUPREMIUM
Ultra-thin profile enabled by high-index materials.
Superior impact resistance and edge durability.
Optimized for high prescriptions (-4.25 and above) with demanding
aesthetic requirements.
PU Lens Crowd Matching Guide
Curated solutions for distinct lifestyle demands.
THE EVERYDAY STANDARD1.61 PU Series
Designed for dynamic daily routines. Provides robust
impact resistance while maintaining a thin, attractive
profile for mild to moderate corrections. The perfect starting
point for laboratory-grade optical clarity.
HIGH PRESCRIPTION DEMAND1.67 PU Series
Designed for high prescriptions who value aesthetics. The 1.67
index significantly reduces edge thickness, minimizing the
'coke-bottle' effect, while offering sufficient structural
rigidity for most full-rim frames. For rimless minimalist frames,
polycarbonate or Trivex is typically prioritized for superior impact resistance.